This is 40 Trailer: It's Everyone's Story

Judd Apatow's latest film, This is Forty, is a spin-off (or "sort-of sequel") of Knocked Up, with Paul Rudd and Leslie Mann reprising their characters Pete and Debbie.

This time, the focus is on their family as Debbie turns the big 4-0.

If you remember their Knocked Up quotes, you know they were among the movie's best, and the new slice-of-life comedy's tagline teases that this is "not just their story ... this is everyone’s story." To a degree, it certainly looks like it is:

Written, directed, and produced by Apatow - the first project he's pulled the trifecta with since 2009's Funny People - This is 40 arrives December 21.